Fingers (index/middle/ring/little)
Thumb
Fingers (index/middle/ring/little)
Purpose
Observation from the lateral aspect of the 2nd-5th finger bones and joints (DIP, PIP, MCP) for fractures, dislocations, deformities, etc.
Prior confirmation
Confirm the purpose of the examination.
Remove any obstacles such as rings or watches.
Confirm the side to be examined.
Positioning
Position the patient in a seated position.
Orient the targeted finger laterally and parallel to the cassette.
The 2nd and 3rd fingers : internally rotate the arm and press the back of the 1st finger against the cassette.
The 4th and 5th fingers : press the outer side of the palm against the cassette.
Center the target area (or PIP) on the cassette.
Ensure the long axis of the finger is parallel to the long axis of the cassette.
Use the non-examining hand to move any fingers not involved in the examination out of the field of view.
CR, distance, field size
CR : Direct the X-ray perpendicularly toward the target area (or PIP) for the examination.
Distance : 100cm
Field size : Include the entire range from the fingertip to the proximal phalanx in the imaging area.
Exposure condition
45kV / 3mAs
Grid ( – )
Image, check-point
Normal (Radiopaedia)
Ensure that there is no overlap of soft tissues in each finger.
The DIP, PIP, and MCP joints should be visible.
Include the entire range from the fingertip to the base of the proximal phalanx in the imaging area.
Verify that the X-ray center can be seen from the four edges of the irradiation field.
Videos
Related materials
Thumb
Purpose
Observation from the lateral aspect of the thumb and joints (DIP, PIP, MCP) for fractures, dislocations, deformities, etc.
Prior confirmation
Confirm the purpose of the examination.
Remove any obstacles such as rings or watches.
Confirm the side to be examined.
Positioning
Seated position.
The inner side of the thumb placed against the cassette to present its lateral aspect.
Center the target area (or MCP joint) on the cassette.
Align the long axis of the finger with the long axis of the cassette.
Separate the other fingers to avoid overlapping.
CR, distance, field size
CR : Direct the X-ray perpendicularly toward the target area (or MCP) for the examination.
Distance : 100cm
Field size : Include the entire range from the fingertip to the proximal phalanx in the imaging area.
Exposure condition
45kV / 3mAs
Grid ( – )
Image, check-point
Normal lateral (Radiopaedia)
Normal lateral (musculoskeletalkey)
Ensure that the other fingers are not overlapping.
Verify the visualization of the IP and MCP joints.
Include the finger from the fingertip to the metacarpal bone in the imaging area.
Confirm that the X-ray center is visible from all four edges of the irradiation field.
Videos
Related materials
